How to delete a file using PHP ?
To delete a file by using PHP is very easy. Deleting a file means completely erase a file from a directory so that the file is no longer exist. PHP has an unlink() function that allows to delete a file. The PHP unlink() function takes two parameters $filename and $context. Syntax:
unlink( $filename, $context );
Below programs illustrate the above approach: Program 1: This program uses unlink() function to remove file from directory. Suppose there is a file named as “gfg.txt”
php
<?php
$file_pointer = "gfg.txt";
if (!unlink( $file_pointer )) {
echo (" $file_pointer cannot be deleted due to an error");
}
else {
echo (" $file_pointer has been deleted");
}
?>
|
Output:
gfg.txt has been deleted
Program 2: This program uses unlink() function to delete a file from folder after using some operation.
php
<?php
$file_pointer = fopen ( 'gfg.txt' , 'w+' );
fwrite( $file_pointer , 'A computer science portal for geeks!' );
fclose( $file_pointer );
if (!unlink( $file_pointer )) {
echo (" $file_pointer cannot be deleted due to an error");
}
else {
echo (" $file_pointer has been deleted");
}
?>
|
Output:
Warning: unlink() expects parameter 1 to be a valid path, resource
given in C:\xampp\htdocs\server.php on line 12
Resource id #3 cannot be deleted due to an error
Note: If the file does not exist then it will display an error.
PHP is a server-side scripting language designed specifically for web development. You can learn PHP from the ground up by following this PHP Tutorial and PHP Examples.
Last Updated :
28 Mar, 2022
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